two supplementary angles differ by 38°. Find the angles. please solve as soon as possible<33
Answers
Step-by-step explanation:
Supplementary angles are the angles which when are added the sum will be =
180
-> let one number be x
so the other number will be x - 38°
-> x + ( x - 38°) = 180°
So , 2x - 38° = 180°
2x= 180° + 38°
2x = 218°
x = 218°÷ 2
x = 109°
x - 38° = 109° - 38° = 71°
Given :–
- Two supplementary angles differ by 38°.
To Find :–
- Measures of both angles.
Solution :–
Let,
The first angle be x.
And the second angle be y.
According to the question,
• x – y = 38°
• x = 38 + y –––––(1)
We know that,
Sum of two supplementary angles = 180°
It means,
→ x + y = 180°
Now, put equation (1),
→ (38° + y) + y = 180°
→ 38° + y + y = 180°
→ 38° + 2y = 180°
→ 2y = 180° – 38°
→ 2y = 142°
→ y =
→ y = 71°
Now, put the value of y in equation (1), we obtain
• x = 38° + y
→ x = 38° + 71°
→ x = 109°
Hence,
The measures of both the angles are 71° & 109°.
Check :–
Sum of two supplementary angles = 180°
It means,
→ x + y = 180°
Here,
- x = 109°
- y = 71°
Put both the values,
→ 109° + 71°
→ 180°